RX400h

How many miles or kilometers are on its odometer?

At least one or two RX400h owners and members of this forum have over 250,000 miles on their vehicles, so yes, absolutely it is possible. Did you check autotrader, craigslist, and cars.com to see what your RX would be worth if it is running well? It it is worth $10,000 and you can have everything fixed for less than $5000, then it may be worth the expense but not as payment to those guys who don't seem to have a clue. I suggest spending $180 or so for an inspection by a Toyota dealership. Check yelp.com to see what their ratings look like. If the issue is not related to the hybrid system, then an experienced independent shop's technician should be able to troubleshoot more effectively. If you ever watch Rain's garage or Car wizard on youtube, you'll see how troubleshooting should be done.

The speaker icon in the video is greyed-out, so I suspect that the downloaded video does not allow sound when others are viewing it. I run Windows 10 and Edge but that shouldn't make a difference. (unless it does) 😏

Dealership mechanics, like mechanics at many independent shops, will often perform a "safety" inspection. Sometimes what they find as needing replacement can actually last months or years without needing to be replaced. Other times, a failed part or parts, like sparkplugs, coils, or injectors can cause other failures (catalytic converter, for example). Some dealerships will post a video or photos of the parts they inspected. If they don't, they expect you to trust their findings. Frankly, I am baffled that your RX, which is newer than our RX, needs that many repairs. Is there someone you know who is a sort of shade-tree mechanic and who can go with you to discuss the issues? The timing belt should not need to be replaced. They should've taken a photo of the belt. Again, get them to reveal what is necessary to get the RX running well. This scenario should never happen. It tells me that they are not very competent. I'd be tempted to take it somewhere else, perhaps a Toyota dealership.

Have you had the brake lines purged of air? That would also cause a low brake pedal. I have changed a master cylinder but in a 1989 car, and not anything newer. I would think a Sienna's procedure would be similar. As you may know, purging the master cylinder is necessary.

I don't think ours was ever tomb-quiet. I cannot hear anything when playing your video. Everytime I shut off the car the steering wheel rises and does make a noise but it doesn't seem to be getting louder. We are the original owners.

I found something similar?

Here's some info that may be relevant:

According to Consumer Reports, issues related to the 2013 RX 350 and 450h are very rare. In fact, years 2013 through 2017 are rated much better than average for reliability. Sometimes dealer demos are driven very aggressively by test-drivers, before ant break-in period had expired. You are correct in that head gaskets do not typically fail before 200,000 miles. Having two gaskets blow is probably not common, although when one leaks the other should be replaced. Another possibility is that the heads are defective in one way or another. The repair shop wouldn't likely know whether this is true until they remove the heads. Our RX400h has over 134,000 miles on it and the only gaskets that have needed to be replaced were the valve cover gaskets at approximately 120,000 miles. You may want to get an estimate from a trusted independent shop and even a Toyota dealership. I think something is "not right".

Nooooooooo! Foods High in Lectins to Avoid - Dr. Robert Kiltz (doctorkiltz.com)

There are some websites that allow you to pose your question and get it answered by an auto technician who specializes in your brand of vehicle. They may charge a fee but I think it may be worth checking out. The average independent shop mechanic is unlikely to solve this quandary.

Anytime!👍

When it comes to spark plugs and gaskets, I would stick to OEM. And before buying other aftermarket replacement parts, check with some of the OEM Lexus parts websites like: https://parts.lexus.com https://www.lexusoeparts.com https://www.lexuspartsnow.com https://www.lexuspartsoutlet.com And www.rockauto.com Also keep in mind that dealership labor rates will almost always be higher than those of an independent shop that has much less overhead. I would skip the fuel injection service if your car is running well. Suspension parts do wear out over time, so if you're planning to keep the car for many years, you do have time to find good prices for the parts. Personally, I would have the suspension work done by a trusted alignment shop. The other work can be done at a trusted independent shop.

One thing I've learned over the years is that like medical specialists, auto mechanics are not equal to each other in their troubleshooting abilities. Perhaps there is a mechanic at a different dealership who has more experience with the symptoms your vehicle has.

Here's an interesting read: FINALLY SOLVED! P0171 and P0174 Codes!!!! - ClubLexus - Lexus Forum Discussion

How old is the 12V battery? Sometimes a failing 12V battery will cause very weird things to happen. One time I saw a code that made me initially think that a big repair was coming up. I checked the 12V battery and one cell was low, so I added distilled water. The message was reset by the dealership and the message never returned. That was 3-4 years ago.

Did this happen immediately after the transmission fluid/filter maintenance? Here's a good read:

This works for our RX400h, also.

There are many tens of thousands of Mazdas, Hondas, BMWs, Toyotas, and Nissans that have destroyed clear coat. Some are less than 10 years old. I know this is different type of problem but historically, if your car is 10+ years old, the dealership cannot cover paint repairs under any type of warranty.

Which armrest, the one on the door or under your right arm?

Hello, Dave. Here is my advice: 1. Find out how much the car is worth if is running perfectly. 2. If the total repair cost is 50% or more of its value, then sell the car as-is. 3. If your car is worth more than $5000, then get it fixed.

Jim, do you think there is no connector in the mirror assembly? I would hope that there is. Otherwise, it may not be a simple replacement job.

Who is going to replace the mirror? I would think that person would want to disconnect the power cords at their connector(s). Can you take apart the old mirror and disconnect the wires? On the other hand, it may be possible to cut and solder the wires to those that are part of the new mirror assembly when you receive it.

You may want to peruse this article: Oil In Coolant Reservoir? (Should I Worry?) (mechanicbase.com)